Fix [2023189]: berserking monsters with friendly targets (e.g. because they

got hit by dragon breath) kept their target with no effect.

git-svn-id: https://crawl-ref.svn.sourceforge.net/svnroot/crawl-ref/trunk@9124 c06c8d41-db1a-0410-9941-cceddc491573

Created by  haranp  on February 18, 2009
SUK42YQMKRRTKPUIE5RLB4NB5HZLUBYDDWE5GCXNMLRTGKEF7AGAC
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